Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2000-4-28
pubmed:abstractText
Relaxant responses to electrical field stimulation (EFS) were investigated in the gastric longitudinal fundus strips from young normal and mdx dystrophic mice, an animal model of Duchenne muscular dystrophy. In carbachol (CCh) precontracted strips from normal mice, EFS elicited brisk relaxant responses that, depending on stimulation frequency, could be followed by a sustained relaxation. In strips from mdx mice the brisk relaxation was impaired. Smooth muscle responses to direct stimulating agents did not differ in amplitude between the two groups of animals. In strips from both normal and mdx mice, N(G)-nitro-L-arginine (L-NNA) abolished the brisk phase of relaxation, without affecting the sustained response. alpha-chymotrypsin abolished, in both preparations, the sustained relaxant response to EFS as well as relaxation to vasoactive intestinal polypeptide. Results suggest that, in strips from mdx mice, a defective production/release of the neurotransmitter responsible for the brisk relaxation, likely nitric oxide, occurs.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0304-3940
pubmed:author
pubmed:issnType
Print
pubmed:day
17
pubmed:volume
282
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
105-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Impaired nitrergic relaxations in the gastric fundus of dystrophic (mdx) mice.
pubmed:affiliation
Department of Physiology, University of Florence, Viale G.B. Morgagni 63, 50134, Florence, Italy.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't